89146947 has 8 divisors (see below), whose sum is σ = 119216656. Its totient is φ = 59254272.

The previous prime is 89146933. The next prime is 89146987. The reversal of 89146947 is 74964198.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 89146947 - 2²² = 84952643 is a prime.

It is a super-3 number, since 3×89146947³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 89146896 and 89146905.

It is not an unprimeable number, because it can be changed into a prime (89146987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43078 + ... + 45099.

It is an arithmetic number, because the mean of its divisors is an integer number (14902082).

Almost surely, 2^89146947 is an apocalyptic number.

89146947 is a deficient number, since it is larger than the sum of its proper divisors (30069709).

89146947 is a wasteful number, since it uses less digits than its factorization.

89146947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88517.

The product of its digits is 435456, while the sum is 48.

The square root of 89146947 is about 9441.7660953870. The cubic root of 89146947 is about 446.7200976280.

The spelling of 89146947 in words is "eighty-nine million, one hundred forty-six thousand, nine hundred forty-seven".